Seoul (CNN) — Watching the public execution of his mother and older brother, Shin Dong-Hyuk thought the punishment was just. They had planned to escape the North Korean labor camp they were being held in until Shin overheard them and reported them to the prison guards.

The escalating “atrocities” in Syria could end up triggering a military intervention, Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey told Fox News on Monday — following the massacre that left more than 100 dead.